NCERT Important Questions Class 9 Science biology Chapter 15
Important NCERT Extra Questions
Chapter 15 Improvement in Food Resources
NCERT Book Extra Questions for Session 2022-2023
CBSE Board and UP Board Others state Board
Fill in the blanks: ………………… and …… climate is more congenial for infestation of weeds, insect-pests and diseases.
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Humid and warm climate is more congenial for infestation of weeds, insect-pests and diseases.